Retaining clip



FIG. 1 is a front elevational view of a retaining clip showing my new design;

FIG. 2 is a top plan view thereof, with the bottom plan view thereof being substantially a mirror image;

FIG. 3 is a side elevational view thereof, with the opposite side elevational view thereof being substantially identical;

FIG. 4 is a rear elevational view thereof. 

The ornamental design for a retaining clip, as shown and described. 